package com.zsc.spring.study.conditional;

import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.context.annotation.Condition;
import org.springframework.context.annotation.ConditionContext;
import org.springframework.core.env.Environment;
import org.springframework.core.type.AnnotatedTypeMetadata;

public class LinuxCondition implements Condition {

    /**ConditionContext：判断条件能使用上下文
     * AnnotatedTypeMetadata：注释信息
     */
    public boolean matches(ConditionContext context, AnnotatedTypeMetadata metadata) {
        //1.获取ioc使用的beanFactory
        ConfigurableListableBeanFactory beanFactory = context.getBeanFactory();
        //2.获取类加载器
        ClassLoader classLoader = context.getClassLoader();
        //3.获取当前的环境信息
        Environment environment = context.getEnvironment();
        //4.获取bean定义的注册类
        BeanDefinitionRegistry registry = context.getRegistry();
        //当前系统名称
        String property = environment.getProperty("os.name");
        if(property.contains("Linux"))
            return true;
        return false;
    }

}
